SKU: 31471776382

Porterfield Brake Pads for 1981 VOLKSWAGEN QUANTUM

Sale price$61.16 Regular price$67.96
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Description

Porterfield Brake Pads for 1981 VOLKSWAGEN QUANTUMPorterfield Brake Pads for 1981 VOLKSWAGEN QUANTUM Porterfield R4 Porterfield R4 Carbon Kevlar based brake pads were fully designed for heavy duty extreme motorsports use. Its one of the the few true motorsports competition pads available on the market today. The carbon based semi metallic R4 brake material allows the brake pad to absorb huge amounts of heat and dissipate it quickly and evenly over time. The Carbon Kevlar material also allows the

Porterfield Brake Pads for 1981 VOLKSWAGEN QUANTUM

Porterfield R4

Porterfield R4 Carbon Kevlar based brake pads were fully designed for heavy-duty extreme motorsports use. Its one of the the few true motorsports competition pads available on the market today. The carbon based semi metallic R4 brake material allows the brake pad to absorb huge amounts of heat and dissipate it quickly and evenly over time. The Carbon-Kevlar material also allows the brake pad to heat up to operating temperature right away so little pad warmup is required for optimal operating condition. This compound also requires very little bed-in so that one is able to change out the pads and almost immediately able use them to their full potential.

R4 series provides high initial bite for immediate brake response while yielding extremely consistent modulation and predictability. This is great for all road courses, oval track, rally, vintage racing, autocross, club events, and professional driving events. This is one of the best motorsports pads we have used. Available for many applications, so please contact us if you do not see one for your car.

Porterfield R4-1

The R4-1 Vintage Full Race Compound was developed using knowledge testing in the vintage racing community. Optimum uses for the R4-1, under conditions where very high friction is needed with minimal warm up time and in applications where there is difficulty in maintaining sufficient heat with conventional race pad compounds. Widely used on vintage GT and formula cars the R4-1 is also gaining popularity in off-road and rally-cross classes. Great modulation, consistent pedal feedback and rotor friendly at all temperatures as with all the other Porterfield Carbon Kevlar compounds.

Porterfield R4-E

The R4-E Endurance Race Compound is a carbon kevlar compound made to last a bit longer than the original R-4 compound. The R4-E compound is designed to endure higher prolonged temperature and still has pad life as long or longer than Porterfield R-4 do. This pad is great for club enduro events and applications where temperatures are at their maximum.

Porterfield R4-S

Porterfield R4-S high performance street and autocross brake pads are great for heavy-duty street and light track applications. Compound is perfect for everyday use while still keeping the highly capable track ready performance. The R4-S features a high friction level that will increase your stopping power with minimal pedal effort.

The R4-S series pads are VERY VERY rotor friendly and yield very low levels of dust; levels are far below OEM equipment or any other high performance brake pads. Your car will stop better and your wheels will stay cleaner longer. Good for autocross, rallies, driving school, and of course daily driving with a little extra stopping power. R4-S pads are available for virtually all vehicles sold in the US and custom R4-S pad sizes for competition style calipers are also available.

This is one of the very best all around street/strip brake pads available at a great price.

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 31471776382

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Jeremy Spencer
Phoenix, US
★★★★★ 2
Flimsy
Size: Full, Color: Walnut
Design which reduces size of box it's needed to ship in results in a frame that doesn't feel durable in the slightest. Sub par compared to other frames at similar price point.
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Reviewed in the United States on May 29, 2026
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Christian
Los Angeles, US
★★★★★ 5
High quality product
Size: Twin, Color: White
High quality!! It was exactly what I was looking for.
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Reviewed in the United States on June 3, 2026
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Amazon Customer
Draper, US
★★★★★ 1
Broke nearly immediately
Size: Queen, Color: Walnut, Size: Queen, Color: Walnut
Terrible. Broke after a month or so of normal use. DO NOT BUY
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Reviewed in the United States on April 12, 2026
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Vile
Houston, US
★★★★★ 5
Outstanding affordable bed frame
Size: Twin, Style: Kai, Size: Twin, Style: Kai
Outstanding bed! Just the right size. Sturdy! Easy to assemble and looks great, too. I had some issues like other reviewers. Mattress slid so I put a layer of foam down between the frame and mattress. All good now! The frame’s too low to the floor for me so I added a thick foam topper so I’m higher up. No issues with slats falling out or anything getting loose over time. I had some difficulty assembling the frame as described but that’s a “me” problem. Got everything correct after a couple tries. The multiple attempts caused no damage. The wood slats took some rough handling during assembly due to them fitting in tight. Assembled fine as a single person with no help. Highly recommend! Especially for the price.
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Reviewed in the United States on July 22, 2025
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Amazon Customer
Phoenix, US
★★★★★ 5
Another great bed frame from Zinus
Size: Queen, Style: Leah
This is the 3rd or 4th or so Zinus bed frame I've purchased and just like the rest, the assembly is easy to follow, it's sturdy, and it looks great. They're also easy to break down and re-assemble in case of a move. The way they use Velcro for the slats to stick to the frame that otherwise ALWAYS fall at some point on other bed frames and is a pain to fix, makes it so much better. They also have a sticky thing on the slats to stick the mattress to the bed frame so the mattress doesn't slide around but I never need to use it. I assembled the bed frame by myself and it took less than an hour. I love that they include a little ratchet in the hardware. All the screws screwed in easily to all the places they needed to go. It's not too heavy. I have a 12 inch mattress so it does almost completely cover the bottom slat on the headboard. The pillows on my 12 inch mattress pretty much cover the headboard. They must use a really thin mattress for the product picture because my bedding engulfs 99% of the frame and you can barely see it, so be warned if you want the bed frame to be visible but have a high mattress/fluffy bedding. I got this one because I had a really low profile frame from them before and I wanted to utilize under bed storage. This has plenty of room to put things away underneath. Either way I really enjoy Zinus's products and will continue to purchase them in the future.
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Reviewed in the United States on December 23, 2025

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